Machine for making double faced corrugated paper



June 13, 1933. w. E. BOWERSOCK ET AL 1,914,071

I MACHINE FOR MAKING DOUBLE FACED CORRUGATED PAPER Filed Feb. 27-, 1951 4 Sheets-Sheet 1 H zZer E. Bowaam By Fra/zas' J iM Attorney #2 E W MW.

1 WW t June 13, 1933. w. E. BowERsocK El AL 1,914,071

MACHINE FOR MAKING DOUBLE FACED CQRRUGATED PAPER Filed Feb. 27, 1931 4 Sheets-Sheet 2 Attorney June 13, 1933. 1,914,071

MACHINE FOR MAKING DOUBLE FACED CORRUGATED PAPER W. E. BOWERSOCK ET AL Filed Feb. 27, 1931 4 Sheets-Sheet 3' In uenlor Wz'iber E. Boa/Macaw B Fra/za'' J gawk Attorney June 13, 1933- w. E. BOWERSOCK T AL 1,914,071

MACHINE FOR MAKING DOUBLE FACED CORRUGATED PAPER Filed Feb. 27, 1931 4 Sheets-Sheet 4 l a I m Wilbert? find/22m,

jozeas fi'wza d J ah M Attorney Inventor UNITED sr Patented June 13, 1933 T E S PATENT OFFICE.

WILBER E. BOWERSOCK AND FRANCIS J. srrnss, or ROCHESTER, N W YORK, AssIGNoRs o THE RoCHEsTnR FOLDING B PORATION OFNEW YORK OX COMPANY, OF ROCHESTER, NEW YORK, A COR- MACHINE FOR MAKING DOUBLE FACED CORRUGATED PAPER Application filed February 27, 1931'. Serial No 518,757.'

The objectof this invention is to provide a new and improved machine for liningcorrugated paper.

Another object of the inventlon is to provide an improvement on a machine that is adapted to make double faced corrugated paper ordouble walled corrugated paper so as to convert it into a machine that is adapt-' ed tomake two runs of doublefaced corrugated paper, and incidentally increase the.

output of the machine.

Y This andotherobjects of the invention w ll be illustrated in the drawings, described 1n the specification and pointed out in the claims at the end thereof.

In the drawings: Figure 1 is a side elevation of an intermediate part of the machine.

F igure 2 is a side elevation of, the left hand end of the machine, which joins to the left hand end of Figure 1.

Figure 3 is a side elevation of 21.11 }1113811116- diate part of the machine, that is o1ned to the right hand end of Figure 1.

Figure 4 is an enlarged view of the left hand end of Figure 3.

Figure 5 is an enlarged view of a portion of the left hand end of Figure 2.

Figure 6 is an enlarged view of one of the i brushes shown in Figure 4.'

Figure 7 is a side elevation of corrugated paper. Figure 8 is a side elevation of single faced corrugated paper.

Figure 9 is a side elevation of double faced corrugated paper. 1

Figure 10 is a side elevation of double walled corrugated paper.

Figure 11 is a side elevation of two sheets of double faced corrugated paper suchas are produced simultaneously by this machine.

In the drawings like reference numerals indicate like characters.

I-Ieretofore paper or straw board has been corrugated and covered on either or both sides thereof with a sheet of paper called a liner. Such corrugated paper, covered with a liner on one side is ordinarily called single =1; faced corrugated paper, and if covered on or as single faced, double faced, or double.

walled corrugated paper. Our invention has for its object to make certain additions to a machine that is adapted to produce either double faced corrugated paper or double walled corrugated paper, so that the machine can be used for producing two runs or sheets of double faced corrugated paper at the same time, instead of one sheet of double faced corrugated paper or one sheet of double walled corrugated paper, and therefore our invention increases the range of usefulness of the machine as well as increases its capacity.

It will be understood that machines for producing double faced or double walled corrugated paper are old and our invention consists in making an improvement on such machines, and our invention therefore is an improvement on such machines as are shown in the patent to Hawkins 1,327,158 and the patent to F eeley 1,264,041.

In the drawings reference numeral 1 in-, dicates a series of bearing blocks arranged'in pairs, each of which pairs supportsa shaft 2,on which is carried a supply roll. As shown in Figure 1, the supply rolls 4, 4 contain the paper which is used for the top liner, the supply rolls 5, 5 contain the paper that is used for the corrugated paper or the filler,

the supply rolls 6, 6 contain the paper that is] used for the bottom liner, it being understood that the bottom liner is applied more evenly and uniformly to the corrugated paper than is the top liner and the bottom liner is therefore used for the outside or bottom with little or no interruption. As shown in Figure 1, the three sheets of paper feed to the right and the sheet 5 feeds under the idler 10 and over the idler 11 and between the corrugating rolls 11 and 12, where it is corrugated, and around the large corrugated drum 13. A paste box 14 is provided with feeding rolls which apply the paste on the tips or exposed ridges of the corrugations as it passes around the drum 13. The bottom liner 6 passes around the preheating roll '7 and around the idler 8 and over the idler 9, by which the bottom liner is pressed into contact with the exposed ridges of the corrugated paper carried on the drum 13. In this way these two runs of paper are joined. together and are carried around the drum 13. This makes a single faced corrugated paper.

["As this paper leaves the drum 13, it passes .around the roller 15. A paste box 16 with suitable paste rollers is placed adjacent to the roller 15, by which paste is applied to the exposed ridges or corrugations of the single faced paper. The run of lining paper 4 7 passes over the idler 17 and under the idler 1'8 and around the preheating roll 19 to the idler 20, by which this run of lining paper is pressed into contact with the exposed corrugations of the single faced corrugated paper that passes over the roll 15, and in this way a'double faced corrugated paper is produced. This paper is carried from the machine by the feed rolls 21 and 22 on the endless belts 23 and 24 carried thereon, and by these belts and *1 rolls it is drawn past the frame of brushes 25,

which brushes bear on the under side of the double faced corrugated paper, which corrugated paper is then drawn past the frame of brushes 26 which bear on the upper side of the double faced corrugated paper if the machine is used for making but one run of double faced paper. Above the frame of brushes 25 is placed the hot plate 25A, and below the frame of brushes 26 is placed the hot plate 26A, and in each case the paper is pressed against'the hot plate by the frame of brushes.

-For the purpose of preventing wear on these brushes in the frame 25, or preventing the soiling of them or the soiling of the double' faced corrugated paper, we use a web of-paper 27 fed from a roll 28, which web of paper is extended over the brushes in the frame 25 and is held there stationary until the paper is worn or soiled, so that the double faced corrugated paper as it passes over the brushes rubs on the paper web 27 and not on the brushes. This helps to keep the corrugated paper itself clean. A similar roll 29 is supported over the frame 26 of brushes from which a paper web 30 feeds so that it extends under the brushes in the frame 26 and is held therein stationary while the double faced corrugated paper passes thereunder, so that the double faced corrugated paper rubs on the paper web 30 and not on the brushes. This also helps to keep the brushes and the double faced corrugated paper clean. When either web of paper 27 or 30 has become sufliciently worn or soiled, several feet more of the paper is fed through, after which the paper is again held stationary and the soiled or worn part of the paper is torn 05.

So far we have described a machine that is adapted for making a single run of double faced corrugated paper. We will now describe the balance of the machine that is adapted to make the second run of corrugated paper. For this purpose, as shown in Figure 2, the supply rolls 34, 34 contain the paper which is used for the bottom liner of the second run of double faced corrugated paper. The supply rolls 35, 35 contain the paper which is used for the corrugated paper or filler, and the supply rolls 36, 36 contain the paper that is used for the top liner. The paper from the supply rolls'34 and 35 is fed to the left. The paper 35 passes between the corrugating rolls 37 and 38 and around the large corrugated drum 39. A paste box 40 is provided with feeding rolls which place the paste on the tips or exposed ridges of the corrugations as it passes around the drum 39. The bottom liner 34 passes under the idler 41 and over the idler 42 and around the preheating roll 43 and then over the idler 44, and then over the idler 45, which presses it against the tips or ridges of the corrugations which have been formed in the paper 35, and joins these two runs of paper together to make a single faced corrugated paper. This run of single faced corrugated paper then passes over the roller 46 and then ofv'er the idler 47 down to the stack 48, in which more or less of the paper is accumulated so that it will have opportunity to dry before it passes on. The paper then passes up over the idler 49 and then to the right at the top of Figures 2 and 3.

The top liner 36 passes over the idler 50 and to the right at the topof Figures 2 and 3. Both of these runs of paper then pass over the chutes 52 and 53. At the top of each of these chutes are placed the blocks 54 and 55, which blocks rest on the paper with a certain weight and create a tension in the paper as it passes over the chutes 52 and 53. A paste box 56 is provided with paste rollers therein, which are adapted to apply paste on the tips or ridges of the corrugations formed in the paper 35. For this purpose the single face corrugated paper is held against the paste rollers by the idler 57. The top liner 36 passes over the idler 58 around the preheater 59 and over the idler 60 and then comes into contact with the corruga tions in the paper 35, all three runs of paper passing under the roller 61, at which point the two runs of double faced corrugated paper come together and go together through the balance of the machine, which is thus made to serve the purpose of finishing two runs of double faced corrugated paper at the same time, this part of the machine being substantially the same as is shown in the patent to Hawkins 1,327,158.

In Figure 2 we have shown by dotted lines that the liner 36 can go to the right instead of to the left and pass over a pulley or roller 50A, instead of over the roller 50, this being merely a matter of convenience. It will also be understood that the top runs of paper from the rolls 34, 35 and 36 are elevated sulficiently high above the supply rolls from which they are taken so that a bridge crane can be installed to move over all the supply rolls of paper and thus rimplify the replacingvof the rolls as fast as they are exhausted.

e claim:

1. The combination of a series of six rolls of paper arranged in a row and having their axes arranged parallel to each other, one half of said rolls feeding three webs of paper toward one end of the row and the other half feeding three webs of paper toward the other end of the row, means for deflecting the three last named webs of paper back in the opposite direction over the row of rolls and bringing all the webs together in parallel relation, a heating and pressing device through which the six webs of paper are passed and combined into two sheets of double faced corrugated paper.

2. The combination of a series of six rolls of paper arranged in a row and having their axes arranged parallel to each other, one half of said rolls feeding three webs of said paper toward one end of the row, and the other half of said rolls feeding three webs of paper toward the other end of the row, means for corrugating the central web of each of the three webs and joining the three webs together by an adhesive, means for deflecting the last named webs of paper back in the opposite direction over the row of rolls and bringing all the webs together in parallel relation, a heating, pressing and drying device through which the six webs of paper are passed together and combined into two sheets of double faced corrugated paper.

3. The combination of the machine elements for feeding, pasting and bringing together two runs of corrugated board and a liner for each run, together with the machine elements for feeding, pasting and bringing together a second liner for each of said runs of corrugated board on the other side thereof, means for pressing, heating and drying the first of said runs of corrugated board with its liners independent of the second run and means for bringing the two runs into parallel relation and means for pressing, heating and drying the second run in combination with the first run without joining the two runs together.

' 4'. In 'a machiHe for "making double faced corrugated paper the combination of-means for. pressing," heating-and: drying said paper; a series of parallel rolls adaptedto. feedi paiper towards'saidfpressing, heating "and dry-r lng means, ase'riesof parallel rolls adapted to feed. icorru'gated .paper and': :two :l liners therefor away from u said pressing, heating anddry ing. meansfor-the' purpose of partially bringing. them together'v and then feeding them toward the pressing, heating and drying means for the purpose of bringing them fully together and pressing the two runs of corrugated paper with their separate liners in common without joining the two runs together.

5. The combination of the machine elements for feeding, pasting and bringing together the two liners and the filler of one run of double faced corrugated board, together with the machine elements for feeding, pasting and bringing together the two liners and the filler of the second run of double faced corrugated board, means for pressing, heating and drying the first of said runs independent of the second run and means for bringing the two runs into parallel relation and means for pressing, heating and drying the second run in combination with the first run without joining the two runs together.

6. The combination of the machine elements for feeding, pasting and bringing together the two liners and the filler of one run of double faced corrugated board, means for pressing, heating and drying said run, a sheet held stationary between said run and the pressing means, and means for drawing the run of double faced corrugated board through the machine.

7. The combination of a series of six rolls of paper arranged in a row and having their axes arranged parallel to each other, one half of said rolls feeding three webs of paper toward one end of the row, two other rolls feeding webs toward the other end of the row and upwardly, the third roll feeding its web upwardly, means for deflecting the three last named webs of paper back over the row of rolls and bringing all the webs together in parallel relation, a heating and pressing device through which the six webs of paper are passed and combined into two sheets of double faced corrugated paper.

8. The combination of a series of six rolls of paper arranged in a row and having their axes arranged parallel to each other, one half of said rolls feeding three webs of paper toward one end of the row, two other rolls feeding webs toward the other end of the row and upwardly, the third roll feeding its web upwardly, means for deflecting the three last named webs of paper back over the row of rolls and bringing all the webs together in parallel relation, a heating and pressing device through which the six webs of paper are passed and combined into two sheets of double faced corrugatel vpaper, the

three last named Webs f ;paper being ele- Vated sufficiently over :the row of rolls to perunit fche operation of a' bridge'crane between them and the row of rolls.

In testimony whereof We aflix our signatures.

WILBER E. BOWERSOGK.

FRANCIS J. SPIESS. 

